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f) \( 0,3^{2 x-1}=0,09 \)

Ask by Klein Gordon. in Uzbekistan
Jan 22,2025

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Answer

\( x = 1,5 \)

Solution

**Masala:** \( 0,3^{2x - 1} = 0,09 \) **Yechilishi:** 1. **Logarifmni qo'llash:** Tenglamaning ikkala tomonining ham logarifmini olamiz: \[ \ln(0,3^{2x - 1}) = \ln(0,09) \] 2. **Logarifm xususiyatlaridan foydalanish:** Eksponentni oldiga ko'paytiruvchi sifatida olib tashlaymiz: \[ (2x - 1) \cdot \ln(0,3) = \ln(0,09) \] 3. **Tenglamani x ga nisbatan yechish:** \[ 2x - 1 = \frac{\ln(0,09)}{\ln(0,3)} \] Hisoblash orqali: \[ 2x - 1 = 2 \] 4. **X ning qiymatini topish:** \[ 2x = 3 \\ x = \frac{3}{2} \\ x = 1,5 \] **Javob:** \( x = 1,5 \)

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Para resolver la ecuación \(0,3^{2x-1} = 0,09\), primero reescribimos \(0,09\) en términos de potencias de \(0,3\). Observamos que \(0,09 = 0,3^2\). Así que podemos igualar las bases: \[ 0,3^{2x-1} = 0,3^2. \] Esto nos da la ecuación \(2x - 1 = 2\). Al resolverla, sumamos \(1\) a ambos lados y luego dividimos entre \(2\): \[ 2x = 3 \implies x = \frac{3}{2}. \] ¡Y voilà! La solución es \(x = 1,5\). Ahora, si deseas verificarlo, puedes sustituir \(x\) de nuevo en la ecuación original y verás que ambos lados que igualan. ¿No es genial? ¡Las matemáticas siempre tienen maneras de comprobar nuestra resolución!

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